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Holed continuously foaming extrusion mould head with exhausting function

A technology of open-cell and microcells, which is applied in the field of continuous foaming extrusion dies with open-cell microcells, which can solve the problems of increasing the production cost of vacuum insulation boards

Active Publication Date: 2008-07-02
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, removing the surface skin will increase the manufacturing cost of vacuum insulation panels

Method used

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  • Holed continuously foaming extrusion mould head with exhausting function
  • Holed continuously foaming extrusion mould head with exhausting function
  • Holed continuously foaming extrusion mould head with exhausting function

Examples

Experimental program
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Embodiment Construction

[0066] figure 2 It is a perspective view of an open-cell microcellular continuous foaming extrusion die according to an embodiment of the present invention, image 3 for figure 2 Cutaway view of the die head, Figure 4 for image 3 A partial enlarged view of the die head. Please refer to Figure 2 to Figure 4, The die head 100 of this embodiment includes a mold body 110 having a mold cavity 120 , wherein one end of the mold cavity 120 forms a material inlet 120 a , and the other end of the mold cavity 120 forms a material outlet 120 b. In this embodiment, the mold body 110 may include an upper template 110a, a lower template 110b and two side templates 110c, wherein the upper template 110a is assembled to the lower template 110b, and the two side templates 110c are respectively assembled to the upper template 110a and the lower template 110c. Two sides of the lower template 110b, and the two side templates 110c together with the upper template 110a and the lower templat...

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PUM

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Abstract

The invention discloses an opening-typed micelle continuous foaming pressing die head, comprising a die body which is provided with a die cavity and at least one gas release flow passage. One end of the die cavity forms a material inlet and the other end thereof forms a material outlet. The die cavity sequentially forms a diverging area, a pressure accumulation area, a pressure release area, an air release area and a shaping area from the material inlet to the material outlet. The gas release area is communicated with space outside the die body through the gas release flow passage. The foaming agent gas which is released in the foaming preparation process is rapidly exhausted outside the die head through the gas release flow passage, thus leading a foaming body to have uniform opening-typed micelle.

Description

technical field [0001] The invention relates to an open-cell continuous foaming extrusion die head, in particular to an open-cell continuous foaming extrusion die head with exhaust function. Background technique [0002] The open-cell microcellular foam made of polystyrene (polystyrene) is generally used as the core material of vacuum insulation panels (Vacuum Insulation Panel, V.I.P.), and its thermal insulation effect is better than that of the current PU (polyurethane) material as the core material. material vacuum insulation panels, and has recyclability. Therefore, the open-cell microcellular foam made of polystyrene is currently often used in insulation devices such as refrigerators. [0003] Supercritical physical foaming continuous extrusion (supercritical physical foaming continuous extrusion) refers to the use of such as refrigerant (HFC), nitrogen (N 2 ), carbon dioxide (CO 2 ) and other supercritical fluids (that is, gases that will form liquid state at high p...

Claims

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Application Information

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IPC IPC(8): B29C47/12B29C47/16B29C47/76B29C48/30B29C48/31B29C48/76
Inventor 洪敏郎张志成曾鹏樟
Owner IND TECH RES INST